Impact of Integrated Plant Nutrient System on Cotton Seed Production in the Coastal Region of Karaikal, Puducherry
Impact of integrated plant nutrient system on cotton
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Authors
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Bagavathi Ammal U
Department of Soil Science and Agricultural Chemistry, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal-609603, India
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Kowsalya G
Department of Soil Science and Agricultural Chemistry, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal-609603, India
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R Sankar
Department of Soil Science and Agricultural Chemistry, Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal-609603, India
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Pradip Dey
ICAR-Indian Institute of Soil Science, Bhopal-462038, Madhya Pradesh, India
Keywords:
soil test crop response -cottonAbstract
To assess the effect of Integrated Plant Nutrient System (IPNS) on cotton seed production, an experiment was conducted with ten treatments, blanket fertilizer recommendation, FYM alone, Soil test crop response (STCR) NPK applications aimed at yield targets of 3.1, 3.3, and 3.5Mg ha{ ¹, corresponding STCR-IPNS treatments for the same targets, one following the farmers’ practice, and an absolute control in RBD with three replications at farmers holding at Varichikudy, Karaikal. The soil in the study area was clay in texture, classified as Typic Haplusterts. The results of field experiment have shown that application of STCR+IPNS-3.5 Mg ha-1 recorded higher plant height, LAI, monopodia plant-1, sympodia plant-1 at all the crop growth stages, which was comparable with other STCR + IPNS treatments. Higher number of fruiting points plant-1 (73.47) was recorded in the STCR+IPNS-3.3 Mg ha-1 which was on par with other STCR+IPNS treatments. Higher bolls plant-1 (64.32), boll setting percentage (87.66 %), boll weight (4.76 g) and Bartlett’s Earliness Index (BEI) (0.59) were recorded in STCR+IPNS-3.5 Mg ha-1. The highest seed cotton yield (3.6 Mg ha-1), stover yield (5930 kg ha-1), ginning per cent (42.52 %), seed index (9.19) and lint index (6.82) were recorded in STCR+IPNS-3.5 Mg ha-1 treatment. The highest seed cotton yield in STCR-IPNS 3.5 Mg ha-1 was 40.35 % and 34.63 % higher than the seed cotton yield recorded by farmers’ practice (2.65 Mg ha-1) and blanket recommendation (2.67 Mg ha-1), respectively and 114.9 % higher than control (1.67Mg ha-1). and response ratio (7.10).
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References
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